MathGL is a library for making high-quality
scientific graphics under Linux and Windows, fast
data plotting and handling of large data arrays,
working in window and console modes, and easily
embedding into other programs. It has more than 40
general types of graphics for 1d, 2d, and 3d data
arrays. It can export graphics to raster and
vector (EPS or SVG) formats. It has an OpenGL
interface and can be used from console programs.
It has functions for data handling and MGL
language scripting for simplification of data
plotting. It has several types of transparency and
smoothed lightning, vector fonts and TeX-like
formula drawing, an arbitrary curvilinear
coordinate system, and many other useful things.

Angel is a 2D game prototyping engine based on
OpenGL and C++. It was originally made by a group
of employees at Electronic Arts Los Angeles for
use in a GameJam they were planning for April of
2008. Angel provides many useful functions for
prototyping gameplay, including simple physics,
particles, text rendering, sound, input mappings,
config files, pathfinding, and Python scripting.

DFF (Digital Forensics Framework) is a simple but powerful tool with a flexible module system which will help you in your digital forensics works, including file recovery due to error or crash, evidence research and analysis, etc. DFF provides a robust architecture and some handy modules.

Texcaller is a convenient interface to the TeX command line tools that handles all kinds of errors without much fuzz. It is written in plain C, is fairly portable, and has no external dependencies besides TeX.

Points&Forces is a set of software tools for architects, engineers, and surveyors. It uses a command line interface. It features a flexible design, total station control, digital camera control, real-time control and visualization, processing of point clouds (from laser scanners or other sources), geometry manipulations, projection of photographs on meshes, photogrammetry, in-situ measurements, and format translations for points, lines, and triangle meshes to formats that include dxf, stl, wrl, and pov. The tools were mostly used for the documentation of cultural heritage sites and buildings.

The pbs_python package is a wrapper class for the Torque Batch System C library. With this package, you now can write utilities and extensions in Python instead of C. This package was developed to replace xpbsmon by an ASCII version named pbsmon. PBSQuery is also included in this package. This is a Python module built on top of the pbs Python module to simplify querying the batch server. There are a lot of examples included in the source package.

SHTns is a high-performance Spherical Harmonic Transform library. It was designed for numerical simulation (fluid flows, mhd, etc.) in spherical geometries, but can be used for any kind of problem involving scalar or vector spherical harmonics. It is very fast, thanks to careful vectorization and runtime tuning. It supports multi-threaded transforms via OpenMP. It features scalar and vector transforms, synthesis and analysis, and flexible truncation and normalization. A Python interface is included.

Discretio is an application (and service) for secure VoIP on smartphones. It allows users to establish calls over the Internet while using state of the art encryption technologies to avoid eavesdropping.